CVE-2020-37171
📋 TL;DR
CVE-2020-37171 is a buffer overflow vulnerability in TapinRadio's proxy username configuration that allows local attackers to crash the application via denial of service. Attackers can overwrite the username field with excessive data (10,000 bytes) to trigger application instability. This affects TapinRadio users with proxy configuration enabled.
💻 Affected Systems
- TapinRadio
📦 What is this software?
Tapinradio by Raimersoft
⚠️ Risk & Real-World Impact
Worst Case
Complete application crash preventing radio streaming functionality, requiring application restart and potential data loss of current session settings.
Likely Case
Application becomes unresponsive and crashes, disrupting radio streaming until manually restarted.
If Mitigated
Minimal impact with proper input validation and buffer size limits in place.
🎯 Exploit Status
Exploit requires local access to modify proxy settings. Simple buffer overflow technique with publicly available proof-of-concept.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2.12.4 or later
Vendor Advisory: https://www.raimersoft.com/php/tapinradio.php
Restart Required: Yes
Instructions:
1. Download latest version from official website. 2. Run installer to update. 3. Restart TapinRadio application.
🔧 Temporary Workarounds
Disable Proxy Configuration
windowsRemove or disable proxy settings in TapinRadio to eliminate attack vector.
Open TapinRadio > Options > Network > Disable 'Use proxy server'
Restrict Local Access
windowsLimit application access to trusted users only on shared systems.
🧯 If You Can't Patch
- Disable proxy server functionality in TapinRadio settings.
- Implement application whitelisting to prevent unauthorized modifications to TapinRadio configuration.
🔍 How to Verify
Check if Vulnerable:
Check TapinRadio version in Help > About. If version is 2.12.3 or earlier and proxy is configured, system is vulnerable.Check Version:
In TapinRadio: Help > About displays version informationVerify Fix Applied:
Verify version is 2.12.4 or later in Help > About. Test proxy configuration with large username input to confirm stability.📡 Detection & Monitoring
Log Indicators:
- Application crash logs from TapinRadio
- Windows Event Logs showing application failures
Network Indicators:
- Unusual proxy configuration changes followed by application termination
SIEM Query:
EventID=1000 OR EventID=1001 AND ProcessName="tapinradio.exe"